Worked on the tree-sitter/tree-sitter repository to enhance cross-platform reliability by implementing Haiku OS endianness support in C. Focused on system programming, the work involved detecting Haiku OS within endian.h and ensuring correct endianness handling across architectures. This addition improved the robustness of tree-sitter’s C parser under Haiku environments by aligning endian-dependent parsing paths with other Unix-like systems. The approach reduced platform-specific parsing edge cases and laid the foundation for broader platform validation in future development cycles. All changes were thoroughly documented, emphasizing maintainability and clarity for ongoing cross-platform development efforts within the project’s codebase.